    <body class="tundra ">
        <div id="external" dojoType="dijit.Dialog" title="My external dialog"
        href="../community/ratecourse/grade?course=1&semester=spring&year=2009&submit=submit" style="width: 500px; height: 300px;">
        </div>
        <p>
            When pressing this button the dialog will popup loading the dialog content
            using an XHR call.
        </p>
        <button dojoType="dijit.form.Button" onClick="dijit.byId('external').show();"
        type="button">
            Show me!
        </button>
    </body>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/dojo/1.4/dojo/dojo.xd.js"
    djConfig="parseOnLoad: true">
    </script>
    <script type="text/javascript">
        dojo.require("dijit.form.Button");
        dojo.require("dijit.Dialog");
    </script>
  